KR101637057B1

KR101637057B1 - Lamellar separator with catch basin

Info

Publication number: KR101637057B1
Application number: KR1020120071104A
Authority: KR
Inventors: 구이도 보나티; 게르트 스투켄쉬나이더; 요르그 스타루트
Original assignee: 발케-뒤르 게엠베하
Priority date: 2011-07-01
Filing date: 2012-06-29
Publication date: 2016-07-06
Also published as: RU2012127423A; DE102012007873B4; CN102847379B; CN102847379A; DE102012007873A1; KR20130004161A; RU2553904C2

Abstract

The present invention relates to a lamella separator (100) for separating liquid droplets from a liquid-charged fluid, wherein the lamella separator (100) is spaced from one another and forms a flow channel for delivery therebetween through a liquid- There are at least two intrinsically vertically oriented lamellar profiles 30 in which liquid droplets are separated from their wall surfaces, and a drainage tank 30 located below the lamellar profiles for receiving the liquid separated from the liquid- (40) having a catch basin (40) and having at least one partitioning wall (45) dividing the drainage tank (40) into a plurality of regions (40a, 40b) .

Description

TECHNICAL FIELD [0001] The present invention relates to a lamella separator having a drainage tank,

The present invention relates to a lamellar separator for separating liquid droplets from a liquid-charged fluid, the liquid-liquid separator being spaced from each other and forming a flow channel therebetween for delivery through the liquid- At least two intrinsically vertically oriented lamellar profiles from which liquid droplets are separated from the wall surface and a catch basin located at the lower end of the lamellar profile to receive liquid separated from the liquid- The present invention relates to a lamella separator.

Such lamellar separators, also known as lamellar droplet separators, are known in the prior art and are used in various processes for separating liquid droplets from liquid-charge fluids, particularly gas streams. In power plants such as solar or nuclear power plants, effective separation of liquid droplets from wet steam determines the thermal efficiency of the power plant. It is thermodynamically advantageous to dry the wet steam before it is superheated in the intermediate superheater and supply it to the condensing circuit during the intermediate superheating of the steam after expansion in the high pressure turbine. In a so-called water separator superheater, such a lamella separator is used to recover moisture from the liquid-charge fluid, particularly the wet vapor. Associated lamella separators include a plurality (i. E., At least two) of thin wall profiles, referred to as lamellar profiles, which are positioned parallel to one another and define a lamellar separation space, from which liquid droplets are separated from the fluid flowing past them. For example, reference is made to GB 1 408 928A for the prior art.

For example, the present invention relates in particular to a lamellar separator having a vertically oriented lamellar profile, wherein the separated liquid droplets are gathered and flow downward due to gravity and gather as a separated liquid in a drainage tank located at the lower end of the lamellar profile. These lamellar separators, which are known in the prior art, are characterized in that the liquid in the drainage tank is swirled and floated by the fluid stream flowing through the lamella separator in spite of the drainage device, There is a problem of rotating upwards into the space. There is a problem of the immersion of the fluid flow into the drainage and therefore the upwardly directed side flow of the fluid stream into the lamella space opposite to the drainage direction of the liquid drop separated from the drainage, Can not be drained downward, but rather discharged off the lamella surface.

It is therefore an object of the present invention to define a lamella separator of the type mentioned above in which the separated liquid located in the drainage tank is calm and does not swirl or swirls at least less severely so that the liquid does not fall off from the lamella again.

This object is achieved by the fact that the drainage tank has at least one partition dividing the drainage tank into a plurality of areas.

Claims 1. A lamellar separator for separating liquid droplets from a liquid-charge fluid, the separator comprising: at least two (2) spaced apart from each other, with a flow channel (lamellar passageway) therebetween for delivery through a liquid-charge fluid, There is proposed a lamella separator having an essentially vertically oriented lamella profile and a drainage tank located at the lower end of the lamella separation space for receiving liquid separated from the liquid-charge fluid. It is proposed that the drain tank has at least one partition dividing the drain tank into a plurality of (i. E. At least two) areas.

The separation of the separated water into the drain tank, which is a point at which the efficiency of the lamella separator can be reduced due to the geometric partitioning of the drain tank into one or more areas or chambers using one or more bulkheads, Floated by the fluid stream and prevented from being transported back up into the lamella separation space. The surface of the liquid collected separately in the drain can thus remain calm and / or calm even when the flow rate of the fluid flowing through the lamella separator is large, resulting in a harmful vortex of the water level in the lamella space and side- . Because they are in the flow path of the liquid-charge fluid, they or they can be used as obstacles, where the fluid stream is clogged or deflected such that the upward flow of side flow between the lamellar separation space and the liquid level connected thereto, Is prevented. Further, by improving the drainage of the collected liquid, the level of the drainage tank can be advantageously kept low in operation. Therefore, the passage-flow rate can advantageously increase.

In an advantageous refinement of the present invention, at least one partition is essentially vertically oriented to extend from the bottom of the drain bath to at least the lower edge of the lamella profile. That is, the bulkhead extends from the drainage stream of the drainage tank at least directly to the lamella separation space. However, it can also extend into the lower region of the lamella profile beyond the lower edge. In this way, the liquid collected separately from the drain can be sufficiently calm and / or calm. The locking of the fluid stream in the drain and thus the side flow upward in the lamella space is reduced accordingly.

It has proved to be particularly advantageous that at least one partition is located transverse to the flow direction of the liquid-charge fluid flowing through the lamella separator. The bulkhead planes of such bulkheads are, for convenience, oriented essentially perpendicular to the lamellar profile.

In a preferred improvement, at least one separate drainage device is provided for each region of the drainage tank formed by the bulkhead.

According to an alternative preferred refinement, it is proposed that a common drain is provided for two adjacent areas of a drain tank separated by a bulkhead.

Furthermore, it is advantageous for the partition to have at least one passage connecting the two adjacent areas separated by the partition in the area of the bottom of the drain. Thus, the different levels of interconnected regions can be the same. Further, as will be described in more detail later in connection with the drawings, only one of the areas connected through the passageways can be provided with the drainage device.

According to another preferred refinement, the lamella profile is formed at least roughly wavy and oriented at least approximately parallel to one another, and a plurality of baffles (opposite to the flow direction) protrude from at least one of these lamella profiles into the flow channel To form a catch pocket that points in the opposite direction to the flow direction to separate the liquid droplets. In particular, a plurality of undercut plates (pointing in the flow direction) protrude from the same Labla Profile and form undercuts pointing in the direction of flow, and the undercut plates are arranged in a direction away from the lamella profile, It is proposed that a labyrinth separator system for separating liquid droplets is formed by superimposing by a limited value a baffle pointing opposite to the flow direction. Such a lamellar profile will be described in more detail below in connection with the drawings. The thus formed lamellar separator with a lamellar profile has a particularly high degree of separation and a large catch capacity stream is obtained for the separated liquid, which is well suited to the previously described drain tank.

The present invention will now be further described, by way of example, on the basis of the three preferred exemplary embodiments shown in the drawings, wherein identical and / or functionally identical elements are identified by the same reference numerals.

1 shows a partial sectional view of a lamella separator according to the prior art.
2 shows a side view of the lamella separator.
Figure 3 shows a partial cross-sectional view of three exemplary embodiments of a lamellar separator according to the present invention.
Fig. 4 shows a plan view of the lamellar profile of the lamellar separator of Fig. 3;

1 shows a bottom bottom region of a lamella separator 100 according to the prior art. The lamella separator 100 is surrounded by a housing 10, and a drain tank 40 is integrated into the housing 10. The lamella separator 100 has a vertically oriented lamella profile that is parallel and spaced apart from one another and which together form a lamella separation space, of which only the lower portion of the single lamella profile 30 is visible in FIG. . The lower edge of the lamella profile 30 is identified as 31. The liquid-charge fluid flows through the lamella separator 100 in the defined through-flow direction S, and the liquid droplets are separated from the fluid flowing over the wall surface of the lamella profile 30 in a known manner. The separated liquid droplets are collected and drained into the drain tank provided for this purpose downward due to gravity. The collected liquid F can be discharged through a drain port 43 (shown by a dotted line) located in the drainage basin 44.

In the lamella separator 100 shown in Fig. 1, a partial stream of the liquid-charge fluid can reach the surface 41 of the liquid F which is gathered between the lower edges 31 of the lamella profile 30 and / It can be poured into the drainage tank 40. The flow direction of this partial stream is identified by T. If the partial stream from the drainage tank 40 is deflected upwardly between the lamellar profiles 30, it will move against the separated liquid droplets and will drain down into the drainage tank 40 due to gravity. The liquid droplets fall out of the lamella surface as intended by the partial stream that is discharged upward with the flow direction T and does not collect in the drain tank 40.

Figure 2 shows a side view of a lamella separator according to the present invention, the entirety of which is identified as 100; The lamella separator 100 has a housing 10 surrounding a lamella separation space having a plurality of essentially vertically oriented lamella profiles 30 (not shown) spaced from one another. (So-called horizontal inflow and through flow) in the through-flow direction S defined by the liquid-drawn fluid, in particular the gas or vapor stream, through the lamella separator 100, Are separated in a known manner on the wall surface of the lamellar profile 30. The collected droplets are drained into the drain tank 40 provided for this purpose due to gravity, and the drain tank 40 can be formed as a catch shell. The drainage tank 40 can be integrated into the housing 10 or formed as a separate component. The lower edge 31 (not visible) of the lamellar profile 30 is indicated by the dotted line. The entry area of the liquid-charge fluid into the housing 10 is identified as 20, which is typically implemented as a perforated plate. The drainage nozzle of the drainage tank 40 is identified as 50.

3A) shows a first exemplary embodiment of a lamella separator 100 having a drainage tank 40. As shown in Fig. The following description is similarly applied to each of the second and third exemplary embodiments of the lamellar separators 100 'and 100 "shown in Figures 3b) and 3c) Is integrated into the housing 10 of the separators 100, 100 'and 100 ", and extends over the entire width and preferably also the depth of the housing 10. A bulkhead 45 is located approximately midway the width of the inner chamber of the drain tank 40 which extends from the drain bottom 44 to the lower edge 31 of the lamella profile 30 and to the drain tank 40 Lt; / RTI > In this exemplary embodiment, the partition 45 divides the drainage tank 40 into two regions, namely chambers 40a and 40b. Through this division, the surface 42 of the liquid F collected and collected in the drain tank 40 can cool down even at the high flow rate of the fluid flowing through the lamella separators 100, 100 'and 100 " It can remain calm and reduce harmful vortices. Due to the high possible flow velocity of the fluid, the bulkhead comprises an internal material, preferably a metal.

Through the division into the two regions 40a and 40b of the drainage tank 40, the drainage of the collected liquid F is further improved (released without interference) so that the level can advantageously remain low in operation. 3a), the two areas 40a and 40b have drain ports 43a and 43b, respectively, at the drain bottom 44. In the first preferred embodiment, 3b), a drainage opening 43 is provided in only the left region 40a or possibly in the right region 40b. The partition wall 45 has a passage 46 in the region of the drainage basin 44 and the passage 46 extends from the surface 42 of the liquid F which has collected the separated areas 40a and 40b Connect each other. 3C), a common drain port 43 is provided for the two areas 40a and 40b separated by the partition 45 at the bottom of the drain tank 44, Extend in the middle of the partition 45 in each case. If separate drains are provided in the separate areas 40a and 40b of the drainage tank 40, as in the first exemplary embodiment of FIG. 3A, And as in the third exemplary embodiment, it is possible to have a smaller dimension than when only one common drain is provided. The number of drains to be provided can be adjusted accordingly according to the structural boundary conditions.

A particularly preferred lamella profile will now be described in conjunction with Figure 4, which is used in the lamella separators 100, 100 'and 100 "in accordance with the present invention and has a particularly high separation with low pressure loss. ) Are shown in plan view along the line IV-VI indicated in Figure 3a. Preferably, the same formed lamella profile (not shown) is located at a distance a parallel to the lamella profile 30 , Two adjacent lamellar profiles 30 form a flow channel between them to transfer through the liquid-charge fluid in a predefined flow direction S.

The lamellar profile 30 has a roughly wavy shape in the flow direction S. A plurality of baffles 31 project opposite the flow direction S on both sides of the lamellar profile 30 and form a catch pocket 32 that points against the liquid drop in a direction opposite to the flow direction S . Further, a plurality of undercut plates 33 pointing in the flow direction protrude from both sides of the lamella profile 30 and form an undercut 34 pointing in the flow direction S. The undercut 33 pointing in the flow direction S overlaps the baffle 31 pointing in the opposite direction to the flow direction S by a defined value at the outer side thereof away from the lamellar profile so that an effective labyrinth To form a common vowel chamber (catch pocket 32 + undercut 34) for receiving liquid separated from the separator system. The undercut plate 33 is only implemented for the flow direction S in the first half of the lamellar profile 30, achieving a very high degree of separation particularly in this zone. Further, an undercut plate 33 having a reduced length in the flow direction S is formed so that the undercut and the common vowel chamber have a reduced capacity in the flow direction S.

The end edges of the baffle 31 and / or the undercut plate 33 are provided with an embossed structure in the overlapping area between the undercut plate 33 and the outer baffle 31 so that the limited contact points are in the overlap region As shown in FIG. As shown, the lamella separator 30 is formed from a plurality of metal cast parts welded together.

Claims

1. A lamellar separator (100) separating liquid droplets from a liquid-charged fluid,
At least two intrinsically vertically oriented lamellar profiles (30) spaced from one another and forming flow channels therebetween for delivery through the liquid-charge fluid, wherein liquid droplets are separated from the wall surfaces, Lt; / RTI >
Has a catch basin (40) located below the lamella profiles for receiving liquid separated from the liquid-charge fluid,
The drain tank 40 has at least one partition 45 dividing the drain tank 40 into a plurality of areas 40a and 40b,
The partition wall 45 has at least one passage 46 connecting two adjacent areas 40a and 40b separated by the partition wall 45 in the region of the drainage basin 44,
Characterized in that a drainage device (43) is provided only in one of the areas (40a and 40b) connected to each other through the passage (46).

The method according to claim 1,
Characterized in that the partition (45) is oriented essentially vertically and extends from the drain bottom (44) to at least the lower edges of the lamellar profiles (30).

The method according to claim 1 or 2,
Characterized in that the partition (45) is located in the flow path of the liquid-charge fluid to form an obstruction of the flow.

The method of claim 3,
Characterized in that the partition wall (45) is located transversely to the flow direction (S) of the liquid-filling fluid.

delete

The method according to claim 1 or 2,
The lamella profiles 30 are wavy and oriented parallel to one another and a plurality of baffles 31 project from the at least one of the lamella profiles 30 into the flow channel to separate To form a catch pocket (32) for the liquid drop, which points in the opposite direction to the flow direction (S).

The method of claim 9,
A plurality of undercut plates 33 protrude from the same lamella profile 30 to form undercuts 34 pointing in the flow direction S and the undercut plates 33 pointing in the flow direction S Are superimposed by baffles 31 pointing opposite to the flow direction S by a defined value at their outer sides facing away from the lamellar profile 30 so that the liquid drops Characterized in that a labyrinth separator system is formed.